<?php
/**
 * Copyright (c) Enalean, 2012. All Rights Reserved.
 *
 * This file is a part of Tuleap.
 *
 * Tuleap is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Tuleap is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Tuleap. If not, see <http://www.gnu.org/licenses/>.
 */

/**
 * Define methods needed by DataAccessResult to manipulate a 
 * database result set 
 */
interface IProvideDataAccessResult extends Iterator, Countable {

    /**
     * Returns an array from query row or false if no more rows
     * @return mixed
     */
    public function getRow();

    /**
     * Returns the number of rows affected
     * @return int
     */
    public function rowCount();
    
    /**
     * Returns false if no errors or returns a MySQL error message
     * @return mixed
     */
    public function isError();

}

?>
